Aye! So for some of you who were confused on the plot, I wanted to explain it.
Basically, it's the end of the world, and the countries are at war, so Alfred sacrifices his loved ones (Canada, England, France, Lithuania, etc) for Russia, such as stealing food and weapons, and handing them to him.
The first part is basically when they kill off every country besides themselves, and they're happy, or so it seems. Alfred can't be fully happy because he's guilty- but he lies to himself and tells himself it's for Ivan.
The second part starts off by Ivan committing suicide. He's doing so so he can join his family, Belarus and Ukraine, in Heaven, so he writes a note for Alfred to 'join him', basically telling him to kill himself, as well.
Now, you see the text that are like this: [text here]?
That's Ivan and Alfred going over everything that's happened. Sorta like a news reporter.
The last and third part is Alfred slowly turning insane and looking through his memories, and he's replaying the memory forever until he dies, because it's the only happy memory with Ivan he has left. He also deletes the 'sad' memory, when y'know the woman was screaming and all that.